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| <h2 title="Class HBaseTimelineStorageUtils" class="title">Class HBaseTimelineStorageUtils</h2> |
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| <pre>public final class <span class="typeNameLabel">HBaseTimelineStorageUtils</span> |
| extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></pre> |
| <div class="block">A bunch of utility functions used in HBase TimelineService backend.</div> |
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| <td class="colFirst"><code>static byte[]</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/hadoop/yarn/server/timelineservice/storage/common/HBaseTimelineStorageUtils.html#calculateTheClosestNextRowKeyForPrefix-byte:A-">calculateTheClosestNextRowKeyForPrefix</a></span>(byte[] rowKeyPrefix)</code> |
| <div class="block">Given a row key prefix stored in a byte array, return a byte array for its |
| immediate next row key.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>static org.apache.hadoop.conf.Configuration</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/hadoop/yarn/server/timelineservice/storage/common/HBaseTimelineStorageUtils.html#getTimelineServiceHBaseConf-org.apache.hadoop.conf.Configuration-">getTimelineServiceHBaseConf</a></span>(org.apache.hadoop.conf.Configuration conf)</code> </td> |
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| <td class="colFirst"><code>static void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../../org/apache/hadoop/yarn/server/timelineservice/storage/common/HBaseTimelineStorageUtils.html#setMetricsTimeRange-org.apache.hadoop.hbase.client.Query-byte:A-long-long-">setMetricsTimeRange</a></span>(org.apache.hadoop.hbase.client.Query query, |
| byte[] metricsCf, |
| long tsBegin, |
| long tsEnd)</code> </td> |
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| <h4>getTimelineServiceHBaseConf</h4> |
| <pre>public static org.apache.hadoop.conf.Configuration getTimelineServiceHBaseConf(org.apache.hadoop.conf.Configuration conf) |
| throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>conf</code> - YARN configuration. Used to see if there is an explicit config |
| pointing to the HBase config file to read. It should not be null |
| or a NullPointerException will be thrown.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>a configuration with the HBase configuration from the classpath, |
| optionally overwritten by the timeline service configuration URL if |
| specified.</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code> - if a timeline service HBase configuration URL |
| is specified but unable to read it.</dd> |
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| <h4>calculateTheClosestNextRowKeyForPrefix</h4> |
| <pre>public static byte[] calculateTheClosestNextRowKeyForPrefix(byte[] rowKeyPrefix)</pre> |
| <div class="block">Given a row key prefix stored in a byte array, return a byte array for its |
| immediate next row key.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>rowKeyPrefix</code> - The provided row key prefix, represented in an array.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the closest next row key of the provided row key.</dd> |
| </dl> |
| </li> |
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| <h4>setMetricsTimeRange</h4> |
| <pre>public static void setMetricsTimeRange(org.apache.hadoop.hbase.client.Query query, |
| byte[] metricsCf, |
| long tsBegin, |
| long tsEnd)</pre> |
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